Rendering API for automation builders and AI agents. Render anything. Instantly.
Rendex turns HTML, a URL, or Markdown into images and PDFs with a single, fast API call — built for n8n, Make, Zapier, and AI agents on MCP. PNG, JPEG, WebP, or PDF output, running on Cloudflare's edge with zero cold starts. (Yes, URL screenshots are one mode.)
| 🌐 Website | rendex.dev |
| 📚 Docs | rendex.dev/docs |
| 🔌 API | api.rendex.dev |
| 🆓 Free tier | 500 calls/month — get a key (no credit card) |
| 🟢 Status | rendex.dev/status |
npm install @copperline/rendex # JavaScript / TypeScript
pip install rendex # Python
npx @copperline/rendex-mcp # MCP server (AI agents)- Render HTML, a URL, or Markdown → PNG, JPEG, WebP, or PDF
- Data templating — fill
{{placeholders}}in HTML/Markdown from a JSON object (invoices, reports, certificates) - Hosted og:image links — a signed URL that renders once and caches, for
<meta og:image> - Content extraction — turn any URL into clean Markdown, JSON, or article HTML
- Batch up to 500 URLs per request, async with signed webhooks
- Device presets, full-page capture, dark mode, geo-targeting (geo on Pro and up)
Monitor any URL for changes. Rendex Watch re-renders a page on a schedule and shows a real-Chrome before/after visual diff with a highlighted overlay (plus a text diff), then alerts you by email (every plan) or a signed webhook (Starter and up). It runs on the same key and credit pool as the rendering API, and it's available across the REST API, the JS/Python SDKs, the MCP server, and the n8n + Zapier integrations.
→ rendex.dev/watch · Watch docs
Rendex is a hosted API — the core product is closed-source. This repo is the public feedback front door, not the API source:
- 🐛 Found a bug? Open a bug report
- 💡 Want a feature? Request it here
- ❓ Have a question? Check the docs first, then open an issue or email support@rendex.dev
- 🔒 Security issue? See SECURITY.md — please don't open a public issue.
The product is closed, but the integration tooling is open — contributions welcome:
| Repo | What it is |
|---|---|
| rendex-mcp | MCP server — use Rendex from Claude, Cursor, Windsurf, and other AI agents |
| rendex-n8n | n8n community node for no-code/low-code workflows |
| rendex-zapier | Zapier integration |
Rendex is also available natively on Make, Activepieces, and Pipedream, and from the official JavaScript and Python SDKs — see rendex.dev/integrations.
Rendex is a product of Copperline Labs LLC.